Seems to me, there is more blood flow from entrance/exit wounds when the projectile is fired at 2,800 fps or so, vs. 3,400 fps. I guess hyper vel hits cause tissue shock and trauma such that wounds don't bleed as freely as from lower velocity hits.
DF
Not really. While part of it is that almost all bullet are designed to work properly at the normal 2,800-3,000fps range and not the 3,400+ range, mostly it has to do with what bullets are used. Using your example of an 80gr Barnes at 3,600fps- that bullet just doesn't create as big a wound as most bullets that are used in cartridges in the under 3,000fps zone. Given equal- none CNS impacts, equal impact velocity and adequate penetration of the vitals- softer bullets that produce secondary wounds from fragments create significantly bigger wound channels and this kill faster.
Hard bullets with marginal shot placement and/or high lung shots produce relatively smaller wounds and bleed less. Couple that with extreme impact velocity where the bullet will shed its petals and the wound channel gets even smaller.
